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JPS56119556A - Control system for loop type network - Google Patents

Control system for loop type network

Info

Publication number
JPS56119556A
JPS56119556A JP2362380A JP2362380A JPS56119556A JP S56119556 A JPS56119556 A JP S56119556A JP 2362380 A JP2362380 A JP 2362380A JP 2362380 A JP2362380 A JP 2362380A JP S56119556 A JPS56119556 A JP S56119556A
Authority
JP
Japan
Prior art keywords
constitution
equipment
loop
center
system control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2362380A
Other languages
Japanese (ja)
Other versions
JPS6142980B2 (en
Inventor
Nobuo Horii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2362380A priority Critical patent/JPS56119556A/en
Publication of JPS56119556A publication Critical patent/JPS56119556A/en
Publication of JPS6142980B2 publication Critical patent/JPS6142980B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To simplify the constitution through disusing the system control peculiar to the loop back constitution from the center, by performing only the duplex system control as the system control from the center and by controlling system switcing for loop back constitution by the loop back state of the terminal station equipment. CONSTITUTION:One center equipment 13 and plural terminal station equipments 23 are connected into a loop-form to constitute the loop-shaped network. By the fault of the transmission line in the part marked with X, equipment 13 and equipment 23#4 are looped back to set the single loop, and the ''1'' system side becomes the current system except equipment 23#4, and common circuit 22 is connected to terminal station equipment control circuit 20 of the ''0'' system side. As a result, only the duplex system control is performed as the system control from the center, and system switching for loop back constitution is controlled by the loop back state of the terminal station equipment, thereby making the system control peculiar to the loop back constitution from the center needless.
JP2362380A 1980-02-26 1980-02-26 Control system for loop type network Granted JPS56119556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2362380A JPS56119556A (en) 1980-02-26 1980-02-26 Control system for loop type network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2362380A JPS56119556A (en) 1980-02-26 1980-02-26 Control system for loop type network

Publications (2)

Publication Number Publication Date
JPS56119556A true JPS56119556A (en) 1981-09-19
JPS6142980B2 JPS6142980B2 (en) 1986-09-25

Family

ID=12115719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2362380A Granted JPS56119556A (en) 1980-02-26 1980-02-26 Control system for loop type network

Country Status (1)

Country Link
JP (1) JPS56119556A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37401E1 (en) 1990-05-09 2001-10-02 Fujitsu Limited Fault recovery system of a ring network
JP2007217757A (en) * 2006-02-17 2007-08-30 Nippon Steel Corp Amorphous alloy ribbon with excellent magnetic properties and space factor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37401E1 (en) 1990-05-09 2001-10-02 Fujitsu Limited Fault recovery system of a ring network
JP2007217757A (en) * 2006-02-17 2007-08-30 Nippon Steel Corp Amorphous alloy ribbon with excellent magnetic properties and space factor
US7988798B2 (en) 2006-02-17 2011-08-02 Nippon Steel Corporation Amorphous alloy ribbon superior in magnetic characteristics and lamination factor

Also Published As

Publication number Publication date
JPS6142980B2 (en) 1986-09-25

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